diff options
| author | Juan Linietsky <reduzio@gmail.com> | 2014-02-09 22:10:30 -0300 |
|---|---|---|
| committer | Juan Linietsky <reduzio@gmail.com> | 2014-02-09 22:10:30 -0300 |
| commit | 0b806ee0fc9097fa7bda7ac0109191c9c5e0a1ac (patch) | |
| tree | 276c4d099e178eb67fbd14f61d77b05e3808e9e3 /core/io/file_access_compressed.h | |
| parent | 0e49da1687bc8192ed210947da52c9e5c5f301bb (diff) | |
GODOT IS OPEN SOURCE
Diffstat (limited to 'core/io/file_access_compressed.h')
| -rw-r--r-- | core/io/file_access_compressed.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/core/io/file_access_compressed.h b/core/io/file_access_compressed.h new file mode 100644 index 0000000000..3039b5c8be --- /dev/null +++ b/core/io/file_access_compressed.h @@ -0,0 +1,101 @@ +/*************************************************************************/ +/* file_access_compressed.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ +#ifndef FILE_ACCESS_COMPRESSED_H
+#define FILE_ACCESS_COMPRESSED_H
+
+#include "io/compression.h"
+#include "os/file_access.h"
+
+class FileAccessCompressed : public FileAccess {
+
+ Compression::Mode cmode;
+ bool writing;
+ int write_pos;
+ uint8_t*write_ptr;
+ int write_buffer_size;
+ int write_max;
+ int block_size;
+ mutable bool read_eof;
+ mutable bool at_end;
+
+ struct ReadBlock {
+ int csize;
+ int offset;
+ };
+
+ mutable Vector<uint8_t> comp_buffer;
+ uint8_t *read_ptr;
+ mutable int read_block;
+ int read_block_count;
+ mutable int read_block_size;
+ mutable int read_pos;
+ Vector<ReadBlock> read_blocks;
+ int read_total;
+
+
+
+
+ String magic;
+ mutable Vector<uint8_t> buffer;
+ FileAccess *f;
+public:
+
+ void configure(const String& p_magic, Compression::Mode p_mode=Compression::MODE_FASTLZ, int p_block_size=4096);
+
+ Error open_after_magic(FileAccess *p_base);
+
+ virtual Error _open(const String& p_path, int p_mode_flags); ///< open a file
+ virtual void close(); ///< close a file
+ virtual bool is_open() const; ///< true when file is open
+
+ virtual void seek(size_t p_position); ///< seek to a given position
+ virtual void seek_end(int64_t p_position=0); ///< seek from the end of file
+ virtual size_t get_pos() const; ///< get position in the file
+ virtual size_t get_len() const; ///< get size of the file
+
+ virtual bool eof_reached() const; ///< reading passed EOF
+
+ virtual uint8_t get_8() const; ///< get a byte
+ virtual int get_buffer(uint8_t *p_dst, int p_length) const;
+
+ virtual Error get_error() const; ///< get last error
+
+ virtual void store_8(uint8_t p_dest); ///< store a byte
+
+ virtual bool file_exists(const String& p_name); ///< return true if a file exists
+
+ virtual uint64_t _get_modified_time(const String& p_file);
+
+
+ FileAccessCompressed();
+ virtual ~FileAccessCompressed();
+
+};
+
+#endif // FILE_ACCESS_COMPRESSED_H
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